METHOD TO MEASURE DIELECTRIC PERMEABILITY OF MATERIALS AND DEVICE FOR ITS REALISATION Russian patent published in 2015 - IPC G01R27/26 

FIELD: measurement equipment.

SUBSTANCE: method is based on measurement of complex ratio of reflection of electromagnetic waves from a section of a transmission line, at the end of which they install calibration measures, and a tested material sample, with subsequent processing of materials. At the section of the transmission line with wave resistance Zw in parallel to it they connect a resistive element with resistance R=(0.1-0.2)Zw, using results of calibration measurements they determine parameters of scattering of a circuit that connects plane of measurement of reflection ratio with plane of connection of the tested section of the line with the tested sample. By processing of data array they find dielectric permeability and tangent of angle of losses of the tested material. The device is proposed for method realisation.

EFFECT: increased accuracy of determination of dielectric permeability in wide range of frequencies.

5 cl, 5 dwg, 1 tbl